[Isolates] Merge from bleeding_edge, revisions 5934-6100.

src/ia32/assembler-ia32.h

Index: src/ia32/assembler-ia32.h
===================================================================
--- src/ia32/assembler-ia32.h	(revision 6904)
+++ src/ia32/assembler-ia32.h	(working copy)
@@ -587,7 +587,16 @@
   static const byte kTestEaxByte = 0xA9;
   // One byte opcode for test al, 0xXX.
   static const byte kTestAlByte = 0xA8;
+  // One byte opcode for nop.
+  static const byte kNopByte = 0x90;
 
+  // One byte opcode for a short unconditional jump.
+  static const byte kJmpShortOpcode = 0xEB;
+  // One byte prefix for a short conditional jump.
+  static const byte kJccShortPrefix = 0x70;
+  static const byte kJncShortOpcode = kJccShortPrefix | not_carry;
+  static const byte kJcShortOpcode = kJccShortPrefix | carry;
+
   // ---------------------------------------------------------------------------
   // Code generation
   //
@@ -921,13 +930,16 @@
   void movdbl(const Operand& dst, XMMRegister src);
 
   void movd(XMMRegister dst, const Operand& src);
+  void movd(const Operand& src, XMMRegister dst);
   void movsd(XMMRegister dst, XMMRegister src);
 
   void pand(XMMRegister dst, XMMRegister src);
   void pxor(XMMRegister dst, XMMRegister src);
   void ptest(XMMRegister dst, XMMRegister src);
 
-  void psllq(XMMRegister reg, int8_t imm8);
+  void psllq(XMMRegister reg, int8_t shift);
+  void pshufd(XMMRegister dst, XMMRegister src, int8_t shuffle);
+  void pextrd(const Operand& dst, XMMRegister src, int8_t offset);
 
   // Parallel XMM operations.
   void movntdqa(XMMRegister src, const Operand& dst);
@@ -961,6 +973,9 @@
 
   int pc_offset() const { return pc_ - buffer_; }
 
+  //dimich
+  byte* buffer() { return buffer_; }
+
   // Check if there is less than kGap bytes available in the buffer.
   // If this is the case, we need to grow the buffer before emitting
   // an instruction or relocation information.